OVERVIEW OF THE CONVENTIONAL SEPTIC SYSTEM

Septic systems are designed to collect, treat and dispose of household wastewater without contaminating groundwater. Your septic system consists of two basic parts: a septic tank and one or more leach lines. In a properly working system, the tank receives sewage from the house and traps the solids, allowing effluent to pass to the leach lines into the soil where it is discharged for final treatment. As the effluent filters down through the soil, any remaining organic matter, pathogens, and suspended solids are treated and removed.

Septic systems are very reliable as long as they are properly designed, constructed and maintained. A properly maintained septic system will have a lifespan of approximately 20 to 30 years. Regular maintenance fees of $125-500 every three to four years is a bargain compared to the cost of repairing or replacing a malfunctioning system. 

HOW IT WORKS

 "Your septic tank is the first step of an onsite domestic wastewater treatment process & must be properly maintained to work correctly. The best designed & operated septic tank & soil treatment area eventually fails unless sludge is periodically removed from the septic tank.*" In the tank, suspended solids are broken down by bacteria to form a scum mat on top and a layer of sludge on the bottom. Over time, the scum and sludge layers grow thicker, gradually decreasing the volume of clear effluent in between.

*Source: https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az1160.pdf

sIDE VIEW- SINGLE COMPARTMENT

sIDE VIEW- YAVAPAI PRECAST TANK (nO FILTER)

SIDE VIEW- YAVAPAI PRESCAST TANK (WITH FILTER TEE)

how a septic tank traps solids


septic tank with concrete baffles

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septic tank with plastic baffles


MAINTENANCE

Maintenance of your system is accomplished by regularly scheduled pumpouts of accumulated solids from tank. As solids increase and the clear effluent space in between decreases, solids will enter the leach field and clog soil pores.